Simon Hørup Eskildsen

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Blog

Napkin Math

Books

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• turbopuffer: fast search on object storage
  Jul 2024
• Index Merges vs Composite Indexes in Postgres and MySQL
  Nov 2022
• Scaling Causal's Spreadsheet Engine from Thousands to Billions of Cells: From Maps to Arrays
  Jul 2022
• Inteview on Data Engineering Podcast on Data Diff
  Jul 2022
• Metrics For Your Web Application's Dashboards
  Mar 2022
• Neural Network From Scratch
  Jan 2022
• Careful Trading Complexity for 'Improvements'
  Nov 2021
• When To Write a Simulator
  Sep 2021
• Increase HTTP Performance by Fitting In the Initial TCP Slow Start Window
  Jul 2021
• Using checksums to verify syncing 100M database records
  Jan 2021
• Filtering with Inverted Indexes
  Nov 2020
• Recommendations
  Sep 2020
• Interview on Changelog on Napkin Math
  Sep 2020
• Circuit Breakers
  Aug 2020
• MySQL transactions per second vs fsyncs per second
  Jul 2020
• Pig Pit
  Jul 2020
• Inverted Index Performance and Merkle Tree Syncronization
  Jun 2020
• Adjacent Possible: Model for Peeking into the Future
  May 2020
• Data Synchronization
  May 2020
• Revision History
  Apr 2020
• In-memory Search
  Mar 2020
• Interview with Every.to/Superorganizers: How I Learn
  Mar 2020
• Composite Primary Keys
  Feb 2020
• How does progress(1) work?
  Jan 2020
• Redis throughput
  Jan 2020
• Membership Intersection Service
  Dec 2019
• Expected Database Query Latency
  Nov 2019
• Logging Cost
  Oct 2019
• Talk at SRECON EU: Advanced Napkin Math: Estimating System Performance from First Principles
  Oct 2019
• 2018
  Jan 2019
• Interview with The Kindle Chronicles Podcast about Reading
  Oct 2018
• How I Read
  Jul 2018
• Media Playlists
  Jun 2018
• Positive Unknown-Unknowns
  Mar 2018
• Peak Complexity
  Feb 2018
• Interview with Scale Your Code on Scaling Shopify, Round Two
  Jan 2018
• 2017
  Dec 2017
• Talk at GOTO Copenhagen: Shopify's Pods Architecture
  Oct 2017
• Talk at @Scale: Resiliency Testing with Toxiproxy
  Aug 2017
• Shitty First Software Drafts
  Jun 2017
• Talk at Railsconf: 5 Years of Rails Scaling to 80K RPS
  Apr 2017
• What Happens To a Webserver When Clients Refresh Really Fast?
  Feb 2017
• Minimum Viable Airtable
  Feb 2017
• 2016
  Jan 2017
• Shitlist Driven Development
  Dec 2016
• How I use Airtable
  Nov 2016
• Talk at Full Stack Fest: Multi-DC
  Sep 2016
• Employees Only Podcast
  Jul 2016
• Mental Modeling
  Mar 2016
• Talk at QCON Sao Paulo: Shopify at Scale
  Mar 2016
• Talk at CUSEC: Reliable Software in a Chaotic World
  Jan 2016
• 2015
  Jan 2016
• Season Driven Cooking
  Dec 2015
• Talk at Euruko: Super-Reliable Software
  Oct 2015
• Interview with Scale Your Code on Scaling Shopify and Running Docker in Production
  Sep 2015
• Why Docker is Not Yet Succeeding Widely in Production
  Jul 2015
• Talk at Dockercon: Resilient Routing and Discovery
  Jun 2015
• Talk at Goruco: Building and Testing Resilient Applications
  Jun 2015
• Talk at GOTO Chicago: Patterns for Docker Success
  May 2015
• Building and Testing Resilient Ruby on Rails Applications
  Jan 2015
• Talk at DockerCon EU: From This-Looks-Fun to Production
  Dec 2014
• Talk at DevOps Days Berlin: Docker at Shopify
  Oct 2014
• Kafka Producer Pipeline for Ruby on Rails
  Jul 2014
• Letterpress Cheater Algorithm
  Sep 2013
• Unix Background Queue
  Sep 2013
• Keeping it simple with Test::Unit
  Mar 2013
• Why I'm glad my iPhone broke
  Jan 2013
• 30 days of super productivity
  Jan 2013
• Multitasking makes you dumb
  Nov 2012
• My journey to the International Olympiad in Informatics
  Jun 2012
• Stop relying on your ORM and learn SQL
  Mar 2011
• Setting up Unicorn with Nginx
  Oct 2010
• A simple Imgur Bash screenshot utility
  May 2010